I have also a Ti 400 mhz. And switched to Jaguar without problems, except it takes lots of space and battery. In my 10 gb hd I installed the Jaguar OS and in an external hd (firewire) I installed all my programs and files and works great. Since all the extras I have (scanner, printer, burner) run with Jaguar I did not install OS 9 anymore. >> I'm planning to upgrade but my main concern is in using standard >> applications, such as Office, filemaker, i-net, etc. to be able to continue >> working should the install hit any snags (i.e., I'm nervous). -- Saludos Pericles http://www.pericleslavat.com